EP 0338773 A3 19910403 - SCRUBBER SQUEEGEES FOR SCRUBBING FORWARD AND BACKWARD
Title (en)
SCRUBBER SQUEEGEES FOR SCRUBBING FORWARD AND BACKWARD
Publication
Application
Priority
US 18506488 A 19880422
Abstract (en)
[origin: EP0338773A2] This is an improvement for a powered floor scrubber (10) which in use is moved forward and backward across a floor to be scrubbed. A scrub brush (22) is rotated within a housing (20) which is open at the bottom and water is supplied within the housing. The improvement consists of attaching double lipped suction squeegees (34, 36, 42, 44) at both the front and rear of the housing and connecting them both to a source (48) of vacuum to suck up soiled water from the floor. The flexible squeegee lips are mounted in such a way that as the machine is moved forward the lips of the front squeegee fold together and shut off the airflow to it while the rear squeegee remains functional. When the machine is moved backward a reverse action of the squeegees occurs, so that there is always a functional squeegee sucking up soiled water behind the scrub brush while airflow to the opposite squeegee is shut off whether the machine is moving forward or backward.
IPC 1-7
IPC 8 full level
A47L 11/204 (2006.01); A47L 11/29 (2006.01); A47L 11/30 (2006.01); A47L 11/40 (2006.01)
CPC (source: EP US)
A47L 11/30 (2013.01 - EP US); A47L 11/4011 (2013.01 - EP US); A47L 11/4016 (2013.01 - EP US); A47L 11/4044 (2013.01 - EP US); A47L 11/4075 (2013.01 - EP US); A47L 11/4083 (2013.01 - EP US); A47L 11/4088 (2013.01 - EP US)
Citation (search report)
- [A] US 3992747 A 19761123 - HUFTON AUSTEN B
- [A] US 3206787 A 19650921 - DANIELS ALVIN F, et al
- [A] US 3118165 A 19640121 - CARL MEYERHOEFER
- [A] US 3200433 A 19650817 - DOWNEY DAVID F
- [A] US 4164055 A 19790814 - TOWNSEND ROBERT L [US]
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
US 4817233 A 19890404; DE 68919260 D1 19941215; DE 68919260 T2 19950601; EP 0338773 A2 19891025; EP 0338773 A3 19910403; EP 0338773 B1 19941109; JP H0217019 A 19900122; JP H0761304 B2 19950705
DOCDB simple family (application)
US 18506488 A 19880422; DE 68919260 T 19890418; EP 89303825 A 19890418; JP 10439489 A 19890424